Sand castings are widely used in a diverse industries and mechanical equipment, especially for the large castings but with small demanding quantity. Due to the lower cost of development of tooling and pattern, you can invest a reasonable cost in mold. Generally speaking, the sand casting are the first choice for the heavy machineries such as heavy duty trucks, rail freight cars, construction machineries and hydraulic systems.

The casting tolerances are divided into Dimensional Casting Tolerances (DCT) and Geometrical Casting Tolerances (GCT). Our foundry would like to talk with you if you have special request on the required tolerances. Here in the following are the general tolerances grade we could reach by our green sand casting, shell mould casting and no-bake furan resin sand casting:

✔ DCT Grade by Green Sand Casting: CTG10 ~ CTG13
✔ DCT Grade by Shell Mold Casting or Furan Resin Sand Casting: CTG8 ~ CTG12
✔ GCT Grade by Green Sand Casting: CTG6 ~ CTG8
✔ GCT Grade by Shell Mold Casting or Furan Resin Sand Casting: CTG4 ~ CTG7

The sand molds mean the casting molding systems made by green sand or dry sand. The sand molding systems mainly cover the sand box, spures, ingates, risers, sand cores, mold sand, binders (if have), refractory materials and all other possible mold sections.